I have behind me several tens of thousands of custody procedures, established personally or under my authority. During my career, I sometimes crossed the white line. It's called civil disobedience. Disobedience to what? To the perversion of law or rules, which causes injustice. Philippe Vénère is the embodiment of the old-fashioned cop. In the middle, he appears as a badass, a “hothead with controversial methods” and formidable efficiency. To his credit, more than 40,000 police custody: who, therefore, better than him, could tell us about it? A trainee student at the ENA beaten up for being too swarthy, a young woman ordered to give a "little treat" to the interpellating police officers, an oriental princess who commits suicide: through these anecdotes, the author accurately restores this atmosphere specific to police stations and their cells. An unusual story of police custody is taking shape, a procedure that can be improved and subject to abuses that he denounces and strongly condemns. And since today, "everyone can find themselves in police custody" and that it is necessary to know their rights and the limits of police authority, this book presents itself as a real manual of resistance against police abuse.